    <SEC-DOCUMENT>0001628280-23-008926-index.html : 20230323
    <SEC-HEADER>0001628280-23-008926.hdr.sgml : 20230323
    <ACCEPTANCE-DATETIME>20230323134144
    ACCESSION NUMBER:		0001628280-23-008926
    CONFORMED SUBMISSION TYPE:	S-8
    PUBLIC DOCUMENT COUNT:		11
    FILED AS OF DATE:		20230322
    DATE AS OF CHANGE:		20230323
    EFFECTIVENESS DATE:		20230322

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ARROWHEAD PHARMACEUTICALS, INC.
    		CENTRAL INDEX KEY:			0000879407
    		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
    		IRS NUMBER:				460408024
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			0930

    	FILING VALUES:
    		FORM TYPE:		S-8
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-270779
    		FILM NUMBER:		23755538

    	BUSINESS ADDRESS:
    		STREET 1:		177 E COLORADO BLVD
    		STREET 2:		SUITE 700
    		CITY:			PASADENA
    		STATE:			CA
    		ZIP:			91105
    		BUSINESS PHONE:		626-696-4702

    	MAIL ADDRESS:
    		STREET 1:		177 E COLORADO BLVD
    		STREET 2:		SUITE 700
    		CITY:			PASADENA
    		STATE:			CA
    		ZIP:			91105

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	ARROWHEAD RESEARCH CORP
    		DATE OF NAME CHANGE:	20040112

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	INTERACTIVE GROUP INC
    		DATE OF NAME CHANGE:	20020509

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	INTERACTIVE INC
    		DATE OF NAME CHANGE:	19940224
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>S-8
    <SEQUENCE>1
    <FILENAME>s-82022inducementawards.htm
    <DESCRIPTION>S-8
    <TEXT>
    Document 1 - file: s-82022inducementawards.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-FILING FEES
    <SEQUENCE>2
    <FILENAME>forms-8feetableex107.htm
    <DESCRIPTION>EX-FILING FEES
    <TEXT>
    Document 2 - file: forms-8feetableex107.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-5.1
    <SEQUENCE>3
    <FILENAME>ex51arrowhead-formsx8opi.htm
    <DESCRIPTION>EX-5.1
    <TEXT>
    Document 3 - file: ex51arrowhead-formsx8opi.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-23.1
    <SEQUENCE>4
    <FILENAME>ex231rsj-arrowheadpharma.htm
    <DESCRIPTION>EX-23.1
    <TEXT>
    Document 4 - file: ex231rsj-arrowheadpharma.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-23.2
    <SEQUENCE>5
    <FILENAME>ex232arrowhead-formsx8co.htm
    <DESCRIPTION>EX-23.2
    <TEXT>
    Document 5 - file: ex232arrowhead-formsx8co.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>ex231rsj-arrowheadpharma001.jpg
    <TEXT>
    Document 6 - file: ex231rsj-arrowheadpharma001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>ex232arrowhead-formsx8co001.jpg
    <TEXT>
    Document 7 - file: ex232arrowhead-formsx8co001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>ex232arrowhead-formsx8co002.jpg
    <TEXT>
    Document 8 - file: ex232arrowhead-formsx8co002.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>ex51arrowhead-formsx8opi001.jpg
    <TEXT>
    Document 9 - file: ex51arrowhead-formsx8opi001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>ex51arrowhead-formsx8opi002.jpg
    <TEXT>
    Document 10 - file: ex51arrowhead-formsx8opi002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>forms-8feetableex107001.jpg
    <TEXT>
    Document 11 - file: forms-8feetableex107001.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>